Technical Blog Archive

In a normally open switch, when the switch is off the contacts are open. This means the electrical connection is broken so the switch is “off”. In Normally Closed switches, the contacts are closed which connects the switch meaning that when they are not compressed they are switched...

A pressure switch has a set activation limit; this will depend on the application and will be set by the user. Once the activation limit is reached, the pressure switch will change state, causing a reaction within the circuit. This is different from a pressure transducer which gives an accurate...

Our buttons and switches are used throughout many industries worldwide. We have a range of electric and pneumatic buttons and switches making them suitable for different environments. Types of Buttons and Switches The different types of buttons and switches we have at Herga...

Air operated foot pedals are just part of our pneumatic range, we also have air operated hand controls, bellows and push-button switches. What is an air operated Foots Pedal? An air operated foot pedal is often used in a wet environment. Instead of electricity, the compression of the foot...

They are an important feature for devices because when they are compressed, the power to the device is immediately cut. Our emergency stop push button switches are part of our safety footswitch range. They can either be incorporated as part of the footswitch on ground level – activated...

What is a Single Pole Switch? A single pole switch has one input and one output, it has two states; “on” or “off”. They can be wired either normally open or normally closed and can be either latching or momentary. There are two types of single pole switch, these are...